Finding the Fourth Proportional to 1,415,518.80, 2,120,167.80 and 1,228,894.80
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Solution
The fourth proportional to 1,415,518.80, 2,120,167.80 and 1,228,894.80 is: 1,840,641.88
Step by Step Solution
- Step 1: Write the proportion equation
1,415,518.80 : 2,120,167.80 = 1,228,894.80 : x - Step 2: Convert to fraction form
1,415,518.80/2,120,167.80 = 1,228,894.80/x - Step 3: Cross multiply
1,415,518.80x = 2,120,167.80 × 1,228,894.80 - Step 4: Simplify right side
1,415,518.80x = 2,605,463,184,547.44 - Step 5: Solve for x
x = 2,605,463,184,547.44/1,415,518.80 - Step 6: Final answer
x = 1,840,641.88
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.